Electronics Forum | Sun Apr 25 20:24:03 EDT 1999 | Bubba
| Hey Guys! | | Look what I get to try and do this week! I got handed a cardboard box on Friday afternoon with the parts and 20 of these little jewels! That's both sides of the board by the way... | | Whoever laid this out, I'd like to go and do a
Electronics Forum | Mon Apr 26 12:16:45 EDT 1999 | Justin Medernach
| Hey Guys! | | Look what I get to try and do this week! I got handed a cardboard box on Friday afternoon with the parts and 20 of these little jewels! That's both sides of the board by the way... | | Whoever laid this out, I'd like to go and do a
Electronics Forum | Wed Apr 16 16:55:38 EDT 2003 | russ
Thanks for the info, Here is a couple more questions (and you thought you were done) What size are these caps /res? how thick is your stencil? what type of oven are you using? what is the finish of the board? Anyway, it seems like (from a distance)t
Electronics Forum | Mon Mar 20 22:39:03 EST 2006 | davef
Pavel Point: You suspect that solder paste can easily get to solder mask causing beading, because the aperture is larger than the component pad. Comment: Probably, this is incorrect. We overprint on solder mask all day long when doing paste-in-hol
Electronics Forum | Thu Oct 26 12:40:49 EDT 2000 | NLykus
Antonio, I would need to have more profile information i.e. preheat temp (hold time) as well as soaking zone (time). What is the peak temperature and how long is it held there. Also, one more thing to check, because I have seen it in the past, is
Electronics Forum | Thu Aug 10 13:16:17 EDT 2000 | Bob Willis
Here is some thing that I wrote a while back on solder beading. First what is a Solder Bead? The term solder bead is used to differentiate it from solder balls. A solder bead is a solder ball but its location is normally constant unlike solder bal
Electronics Forum | Tue Aug 10 16:01:12 EDT 1999 | Earl Moon
| | | | | | I am having cleaning problems when processing PCB's which have | | | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tid
Electronics Forum | Tue Dec 12 17:54:04 EST 2000 | ralph
I've had this problem myself, though in using water soluables. But the process to eliminate it is still the same. There are three possible causes for this to occure. Too much humidity, to much solder, and too much heat. Are you leaving the paste
Electronics Forum | Sun Jan 07 08:46:08 EST 2018 | spoiltforchoice
Your paste should specify a number of times it is OK for various things to happen. The two you might care about are the "Stencil Time"/"Working life", which is how long the paste can be out of the pot on your stencil while you print PCBs. The othe
Electronics Forum | Thu May 26 08:52:42 EDT 2011 | davef
Phil Zarrow wrote a useful paper that could help in evaluating paste. Here read it ... Evaluating Solder Paste � Not An Option Contributed by Phil Zarrow of ITM an Independent SMT consulting firm With soldering being the dominant source of assembly
.jpg)
